In the AF we called it PMEL. My anecdote is getting a 9 track tape of all of the test equipment part numbers and calibration intervals (TO-1-1-100 , maybe?).

In the AF we called it PMEL. My anecdote is getting a 9 track tape of all of the test equipment part numbers and calibration intervals (TO-1-1-100 , maybe?). transfer the tape to a disk file, sort it and use binary search. a couple of years before ms access, but turbo pascal was king !